Developers
HIITplay API Sandbox
Test the permanent free curated workout through a live, anonymous, side-effect-free JSON endpoint.
Last updated: September 14, 2026
Live request
Send GET https://hiitplay.fit/api/workouts/preview?duration_minutes=5. The endpoint is public, deterministic, read-only, and available without an account, API key, OAuth, checkout, or payment. It returns the authored five-minute workout, interval timing, the available duration list, and a browser playback URL.
Structured recovery
Try duration_minutes=20 or a non-numeric value to inspect the error contract. Failure responses are JSON objects with a stable error.code, a human-readable error.message, and an error.resolution hint that tells an agent which duration to use next. Unknown /api paths and unsupported HTTP methods use the same error shape.
What the sandbox proves
The sandbox exercises a real production contract backed by the same curated workout catalog used by the anonymous MCP workout.preview tool. It does not generate a new Workout Session, create an Actor, consume an Entitlement, write data, start checkout, or create an Agent Connection. For generated workouts, use OAuth-protected MCP access or a supported browser access path.
Questions
Contact support@hiitplay.fit if you have questions about this page.